原标题：IDT ZWIR4532可编低功耗IPv6通信模块IoT解决方案

　　IDT公司的ZWIR4532是涌进来无线连接IoT设备的可编低功耗IPv6通信模块,集成了超低功耗ARM® Cortex™-M0+ 32位MCU,运行在网络堆栈,是低带宽的通用安全无线电通信模块,采用ZWIR4532传感器和设备能自主工作,或连接到本地或全球的IPv6网络.主要用在无许可证的868/915MHz频段,4路EU频段(865.3–868.3 MHz),10路US频段(906–924 MHz),可选择BPSK或O-QPSK调制,工作电压1.8V-3.3V,工作温度-40℃到+85℃,主要用在工业自动化,家庭和建筑物自动化,健康监视和遥感遥测.本文介绍了ZWIR4532主要特性,框图以及评估板ZWIR4532 EVK主要特性,电路图和PCB元件分布图.

　　The ZWIR4532 is a programmable low-power secure IPv6 communication module for internet of things (IOT) device networks. Sensors and devices can operate or connect to local or global IPv6 networks using the ZWIR4532. The ZWIR4532 serves as a universal secure radio communication module for applications with low bandwidth requirements.

　　The module incorporates an ultra-low-power ARM® Cortex™-M0+ 32-bit microcontroller which is running the network stack. In addition, the user application can run on the microcontroller. This helps minimizing the size, complexity and overall BOM. A rich set of digital and analog peripherals is available for interfacing with external application components. Approximately 128kB of flash and 4kB of RAM are available for user applications.

　　IDT offers the SensorShare user programmable royalty-free 6LoWPAN network stack with mesh routing capability for the ZWIR4532. 6LoWPAN is an Internet Engineering Task Force (IETF) standard for wireless low-power IPv6-based sensor and device networks.

　　Secure communication is provided by a standard-compliant implementation of the Internet Protocol Security (IPSec) protocol suite.

　　ZWIR4532主要特性:

　　• License-free 868/915 MHz frequency bands

　　• 4 channels in EU frequency band (865.3 – 868.3 MHz)

　　• 10 channels in US frequency band (906 – 924 MHz)

　　• BPSK or O-QPSK modulation selectable

　　 BPSK with 20kBps EU and 40kBps U

　　 ARM® Cortex™-M0+ 32-bit ultra-low-power microcontroller

　　 192kB flash and 20kB RAM

　　 6kByte EEPROM

　　 5 UART interfaces

　　 1 SPI interface

　　 3 I²C interfaces

　　 10 PWM outputs

　　 12 bit ADC with 10 input channels

　　 2 analog comparators

　　 31 GPIOs

　　 Network Stack

　　 UDP/IPv6 communication

　　 Mesh networking with hundreds of nodes

　　 Self-healing defective routes

　　 Over-the-Air update capable

　　 Network layer security

　　 Ultra-low power stop mode: < 1μA with full RAM retention

　　 Supply voltage: 1.8V to 3.3V

　　 -40℃ to +85℃ ambient operating temperature

　　 15.6×12 mm 43-LGA Package

　　ZWIR4532典型应用:

　　 Industrial automation

　　 Home and building automation

　　 Health monitoring

　　 Telemetry

　　图1.ZWIR4532框图

　　评估板ZWIR4532 EVK

　　The ZWIR4532 Development Kit is a set of three circuit boards intended as an evaluation and application development platform for the ZWIR4532 6LoWPAN module. Each Development Board provides an USB interface and an optional single Ethernet interface to connect with the user’s PC. The USB is used as a virtual COM port and provides the power supply for JTAG programming and debugging. The Ethernet interface is provided to easily integrate the 6LoWPAN network into existing network infrastructure. Push buttons and LEDs are available as an on-board user interface. The application circuitry can be easily prototyped.

　　The Development Kit provides firmware libraries and example programs. Firmware libraries include an operating system, IDT’s mesh-routing-enabled 6LoWPAN stack, IP-Security (IPSec) and Internet Key Exchange version 2 (IKEv2) protocol support, as well as support for over-the-air (OTA) updates and different peripheral libraries. Ethernet gateway firmware is provided with the kit, allowing transparent integration of sensor networks into existing Ethernet networks.

　　评估板ZWIR4532 EVK主要特性:

　　 IDT SensorShare firmware libraries and example programs

　　 License-free 868/915 MHz frequency bands

　　 IPv6 module addressing

　　 4 channels in EU mode; 10 channels in US mode

　　 Over-the-air update (OTAU) functionality

　　 Mesh connectivity

　　 HS3001 Humidity and Temperature Sensor with I2C interface in the Sensor Cube

　　• RH accuracy: ±1.5% RH typical (10% to 90% RH,25℃)

　　• Fast RH response time (typical: 6 seconds)

　　• Temperature sensor accuracy: ±0.2℃ (typ.) at -10℃ to +80℃

　　 Related datasheets are available online:

　　• ZWIR4532: www.idt.com/ZWIR4532

　　• HS3001: www.idt.com/HS3001

　　• ENC28J60H Ethernet Adapter

　　https://www.olimex.com/Products/Modules/Ethernet/ENC28J60-H/resources/ENC28J60-H.pdf

　　• microchip AT86RF212 Transceiver

　　http://ww1.microchip.com/downloads/en/DeviceDoc/doc8168.pdf

　　• ST Micro stm32L071 MCU https://www.st.com/resource/en/datasheet/stm32l071v8.pdf

　　评估板ZWIR4532 EVK包括:

　　 3 ZWIR4532 development boards

　　 3 HS3001 Humidity and Temperature sensors

　　 3 USB to Micro USB cables

　　 3 antennas

　　 1 Ethernet adapter

　　图2.评估板ZWIR4532 EVK连接图

　　图3.评估板ZWIR4532 EVK电路图(1)

　　图4.评估板ZWIR4532 EVK电路图(2)

　　图5.评估板ZWIR4532 EVK电路图(3)

　　图6.评估板ZWIR4532 EVK电路图(4)

　　图7.评估板ZWIR4532 EVK电路图(5)

　　图8.评估板ZWIR4532 EVK电路图(6)

　　图9.评估板ZWIR4532 EVK电路图(7)

　　图10.评估板ZWIR4532 EVK电路图(7)

　　图11.评估板ZWIR4532 EVK电路图(8)